QUESTION IMAGE
Question
complete the table of values (for ( f(x) = 4x^2 - 6 ) and ( g(x) = 5x - 2 ))
| ( x ) | ( f(x) ) | ( g(x) ) |
|---|---|---|
| 2 | ||
| 3 | ||
| 4 |
both ( f(x) ) and ( g(x) ) grow as ( x ) gets larger and larger. which function eventually exceeds the other?
( f(x) = 4x^2 - 6 )
( g(x) = 5x - 2 )
Step1: Calculate $f(x)$ for $x=1$
Substitute $x=1$ into $f(x)=4x^2-6$:
$f(1)=4(1)^2-6=4-6=-2$
Step2: Calculate $g(x)$ for $x=1$
Substitute $x=1$ into $g(x)=5x-2$:
$g(1)=5(1)-2=5-2=3$
Step3: Calculate $f(x)$ for $x=2$
Substitute $x=2$ into $f(x)=4x^2-6$:
$f(2)=4(2)^2-6=16-6=10$
Step4: Calculate $g(x)$ for $x=2$
Substitute $x=2$ into $g(x)=5x-2$:
$g(2)=5(2)-2=10-2=8$
Step5: Calculate $f(x)$ for $x=3$
Substitute $x=3$ into $f(x)=4x^2-6$:
$f(3)=4(3)^2-6=36-6=30$
Step6: Calculate $g(x)$ for $x=3$
Substitute $x=3$ into $g(x)=5x-2$:
$g(3)=5(3)-2=15-2=13$
Step7: Calculate $f(x)$ for $x=4$
Substitute $x=4$ into $f(x)=4x^2-6$:
$f(4)=4(4)^2-6=64-6=58$
Step8: Calculate $g(x)$ for $x=4$
Substitute $x=4$ into $g(x)=5x-2$:
$g(4)=5(4)-2=20-2=18$
Step9: Compare long-term growth
Quadratic functions grow faster than linear functions as $x$ increases.
Snap & solve any problem in the app
Get step-by-step solutions on Sovi AI
Photo-based solutions with guided steps
Explore more problems and detailed explanations
Completed Table:
| $x$ | $f(x)$ | $g(x)$ |
|---|---|---|
| 2 | 10 | 8 |
| 3 | 30 | 13 |
| 4 | 58 | 18 |
Growth Conclusion:
$f(x) = 4x^2 - 6$ eventually exceeds $g(x) = 5x - 2$ as $x$ gets larger.